coast. you may have noticed a little more humidity in the air today. that was the monsoon moisture, coming up from the desert southwest, traveling right up in front of this upper level low pressure system. this isn't very strong. but as this moves on shore, could interact with that monsoon moisture, most likely, central valley, east bay hills, south of livermore tomorrow, isolated thundershower chance. it's a very small chance though. overnight lows will be relatively mild. you may notice it's a touch muggy out there, mainly in the 50s to about 60 degrees, tomorrow i'm thinking we're going to warm things up, about 3 to 5 degrees, putting you up near 90 in gilroy for the last day of the garlic festival. low 0s san jose, 79 in freemont. strong afternoon sea breeze pushing through the gaps. san francisco the marathon tomorrow morning, temperatures right around 0 degrees, good running weather.